TY - CONF T1 - Output frequencies of nonlinear systems under a general input JO - 2007 IEEE INTERNATIONAL CONFERENCE ON NETWORKING, SENSING, AND CONTROL, VOLS 1 AND 2 PY - 2007/01/01 AU - Wu XF AU - Lang ZQ AU - Billings SA ED - SP - 668 EP - 673 Y2 - 2024/12/25 ER -